git.oblomov.eu Git - wine/blob - dlls/gdi32/enhmfdrv/init.c

   1 /*
   2  * Enhanced MetaFile driver initialisation functions
   3  *
   4  * Copyright 1999 Huw D M Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <assert.h>
  22 #include <stdarg.h>
  23 #include <string.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "wingdi.h"
  28 #include "winnls.h"
  29 #include "gdi_private.h"
  30 #include "enhmfdrv/enhmetafiledrv.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(enhmetafile);
  34
  35 static BOOL EMFDRV_DeleteDC( PHYSDEV dev );
  36
  37 static const struct gdi_dc_funcs EMFDRV_Funcs =
  38 {
  39     NULL,                            /* pAbortDoc */
  40     EMFDRV_AbortPath,                /* pAbortPath */
  41     NULL,                            /* pAlphaBlend */
  42     NULL,                            /* pAngleArc */
  43     EMFDRV_Arc,                      /* pArc */
  44     NULL,                            /* pArcTo */
  45     EMFDRV_BeginPath,                /* pBeginPath */
  46     NULL,                            /* pBlendImage */
  47     NULL,                            /* pChoosePixelFormat */
  48     EMFDRV_Chord,                    /* pChord */
  49     EMFDRV_CloseFigure,              /* pCloseFigure */
  50     NULL,                            /* pCopyBitmap */
  51     NULL,                            /* pCreateBitmap */
  52     NULL,                            /* pCreateCompatibleDC */
  53     NULL,                            /* pCreateDC */
  54     NULL,                            /* pDeleteBitmap */
  55     EMFDRV_DeleteDC,                 /* pDeleteDC */
  56     EMFDRV_DeleteObject,             /* pDeleteObject */
  57     NULL,                            /* pDescribePixelFormat */
  58     NULL,                            /* pDeviceCapabilities */
  59     EMFDRV_Ellipse,                  /* pEllipse */
  60     NULL,                            /* pEndDoc */
  61     NULL,                            /* pEndPage */
  62     EMFDRV_EndPath,                  /* pEndPath */
  63     NULL,                            /* pEnumFonts */
  64     NULL,                            /* pEnumICMProfiles */
  65     EMFDRV_ExcludeClipRect,          /* pExcludeClipRect */
  66     NULL,                            /* pExtDeviceMode */
  67     NULL,                            /* pExtEscape */
  68     EMFDRV_ExtFloodFill,             /* pExtFloodFill */
  69     EMFDRV_ExtSelectClipRgn,         /* pExtSelectClipRgn */
  70     EMFDRV_ExtTextOut,               /* pExtTextOut */
  71     EMFDRV_FillPath,                 /* pFillPath */
  72     EMFDRV_FillRgn,                  /* pFillRgn */
  73     EMFDRV_FlattenPath,              /* pFlattenPath */
  74     NULL,                            /* pFontIsLinked */
  75     EMFDRV_FrameRgn,                 /* pFrameRgn */
  76     EMFDRV_GdiComment,               /* pGdiComment */
  77     NULL,                            /* pGdiRealizationInfo */
  78     NULL,                            /* pGetCharABCWidths */
  79     NULL,                            /* pGetCharABCWidthsI */
  80     NULL,                            /* pGetCharWidth */
  81     EMFDRV_GetDeviceCaps,            /* pGetDeviceCaps */
  82     NULL,                            /* pGetDeviceGammaRamp */
  83     NULL,                            /* pGetFontData */
  84     NULL,                            /* pGetFontUnicodeRanges */
  85     NULL,                            /* pGetGlyphIndices */
  86     NULL,                            /* pGetGlyphOutline */
  87     NULL,                            /* pGetICMProfile */
  88     NULL,                            /* pGetImage */
  89     NULL,                            /* pGetKerningPairs */
  90     NULL,                            /* pGetNearestColor */
  91     NULL,                            /* pGetOutlineTextMetrics */
  92     NULL,                            /* pGetPixel */
  93     NULL,                            /* pGetPixelFormat */
  94     NULL,                            /* pGetSystemPaletteEntries */
  95     NULL,                            /* pGetTextCharsetInfo */
  96     NULL,                            /* pGetTextExtentExPoint */
  97     NULL,                            /* pGetTextExtentExPointI */
  98     NULL,                            /* pGetTextFace */
  99     NULL,                            /* pGetTextMetrics */
 100     NULL,                            /* pGradientFill */
 101     EMFDRV_IntersectClipRect,        /* pIntersectClipRect */
 102     EMFDRV_InvertRgn,                /* pInvertRgn */
 103     EMFDRV_LineTo,                   /* pLineTo */
 104     EMFDRV_ModifyWorldTransform,     /* pModifyWorldTransform */
 105     EMFDRV_MoveTo,                   /* pMoveTo */
 106     EMFDRV_OffsetClipRgn,            /* pOffsetClipRgn */
 107     EMFDRV_OffsetViewportOrgEx,      /* pOffsetViewportOrgEx */
 108     EMFDRV_OffsetWindowOrgEx,        /* pOffsetWindowOrgEx */
 109     EMFDRV_PaintRgn,                 /* pPaintRgn */
 110     EMFDRV_PatBlt,                   /* pPatBlt */
 111     EMFDRV_Pie,                      /* pPie */
 112     EMFDRV_PolyBezier,               /* pPolyBezier */
 113     EMFDRV_PolyBezierTo,             /* pPolyBezierTo */
 114     NULL,                            /* pPolyDraw */
 115     EMFDRV_PolyPolygon,              /* pPolyPolygon */
 116     EMFDRV_PolyPolyline,             /* pPolyPolyline */
 117     EMFDRV_Polygon,                  /* pPolygon */
 118     EMFDRV_Polyline,                 /* pPolyline */
 119     NULL,                            /* pPolylineTo */
 120     NULL,                            /* pPutImage */
 121     NULL,                            /* pRealizeDefaultPalette */
 122     NULL,                            /* pRealizePalette */
 123     EMFDRV_Rectangle,                /* pRectangle */
 124     NULL,                            /* pResetDC */
 125     EMFDRV_RestoreDC,                /* pRestoreDC */
 126     EMFDRV_RoundRect,                /* pRoundRect */
 127     EMFDRV_SaveDC,                   /* pSaveDC */
 128     EMFDRV_ScaleViewportExtEx,       /* pScaleViewportExtEx */
 129     EMFDRV_ScaleWindowExtEx,         /* pScaleWindowExtEx */
 130     EMFDRV_SelectBitmap,             /* pSelectBitmap */
 131     EMFDRV_SelectBrush,              /* pSelectBrush */
 132     EMFDRV_SelectClipPath,           /* pSelectClipPath */
 133     EMFDRV_SelectFont,               /* pSelectFont */
 134     EMFDRV_SelectPalette,            /* pSelectPalette */
 135     EMFDRV_SelectPen,                /* pSelectPen */
 136     EMFDRV_SetArcDirection,          /* pSetArcDirection */
 137     EMFDRV_SetBkColor,               /* pSetBkColor */
 138     EMFDRV_SetBkMode,                /* pSetBkMode */
 139     EMFDRV_SetDCBrushColor,          /* pSetDCBrushColor*/
 140     EMFDRV_SetDCPenColor,            /* pSetDCPenColor*/
 141     EMFDRV_SetDIBitsToDevice,        /* pSetDIBitsToDevice */
 142     NULL,                            /* pSetDeviceClipping */
 143     NULL,                            /* pSetDeviceGammaRamp */
 144     EMFDRV_SetLayout,                /* pSetLayout */
 145     EMFDRV_SetMapMode,               /* pSetMapMode */
 146     EMFDRV_SetMapperFlags,           /* pSetMapperFlags */
 147     EMFDRV_SetPixel,                 /* pSetPixel */
 148     NULL,                            /* pSetPixelFormat */
 149     EMFDRV_SetPolyFillMode,          /* pSetPolyFillMode */
 150     EMFDRV_SetROP2,                  /* pSetROP2 */
 151     NULL,                            /* pSetRelAbs */
 152     EMFDRV_SetStretchBltMode,        /* pSetStretchBltMode */
 153     EMFDRV_SetTextAlign,             /* pSetTextAlign */
 154     NULL,                            /* pSetTextCharacterExtra */
 155     EMFDRV_SetTextColor,             /* pSetTextColor */
 156     EMFDRV_SetTextJustification,     /* pSetTextJustification */
 157     EMFDRV_SetViewportExtEx,         /* pSetViewportExtEx */
 158     EMFDRV_SetViewportOrgEx,         /* pSetViewportOrgEx */
 159     EMFDRV_SetWindowExtEx,           /* pSetWindowExtEx */
 160     EMFDRV_SetWindowOrgEx,           /* pSetWindowOrgEx */
 161     EMFDRV_SetWorldTransform,        /* pSetWorldTransform */
 162     NULL,                            /* pStartDoc */
 163     NULL,                            /* pStartPage */
 164     EMFDRV_StretchBlt,               /* pStretchBlt */
 165     EMFDRV_StretchDIBits,            /* pStretchDIBits */
 166     EMFDRV_StrokeAndFillPath,        /* pStrokeAndFillPath */
 167     EMFDRV_StrokePath,               /* pStrokePath */
 168     NULL,                            /* pSwapBuffers */
 169     NULL,                            /* pUnrealizePalette */
 170     EMFDRV_WidenPath                 /* pWidenPath */
 171 };
 172
 173
 174 /**********************************************************************
 175  *           EMFDRV_DeleteDC
 176  */
 177 static BOOL EMFDRV_DeleteDC( PHYSDEV dev )
 178 {
 179     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 180     UINT index;
 181
 182     if (physDev->emh) HeapFree( GetProcessHeap(), 0, physDev->emh );
 183     for(index = 0; index < physDev->handles_size; index++)
 184         if(physDev->handles[index])
 185             GDI_hdc_not_using_object(physDev->handles[index], dev->hdc);
 186     HeapFree( GetProcessHeap(), 0, physDev->handles );
 187     HeapFree( GetProcessHeap(), 0, physDev );
 188     return TRUE;
 189 }
 190
 191
 192 /******************************************************************
 193  *         EMFDRV_WriteRecord
 194  *
 195  * Warning: this function can change the pointer to the metafile header.
 196  */
 197 BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
 198 {
 199     DWORD len;
 200     ENHMETAHEADER *emh;
 201     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 202
 203     TRACE("record %d, size %d %s\n",
 204           emr->iType, emr->nSize, physDev->hFile ? "(to disk)" : "");
 205
 206     assert( !(emr->nSize & 3) );
 207
 208     physDev->emh->nBytes += emr->nSize;
 209     physDev->emh->nRecords++;
 210
 211     if(physDev->hFile) {
 212         if (!WriteFile(physDev->hFile, emr, emr->nSize, NULL, NULL))
 213             return FALSE;
 214     } else {
 215         DWORD nEmfSize = HeapSize(GetProcessHeap(), 0, physDev->emh);
 216         len = physDev->emh->nBytes;
 217         if (len > nEmfSize) {
 218             nEmfSize += (nEmfSize / 2) + emr->nSize;
 219             emh = HeapReAlloc(GetProcessHeap(), 0, physDev->emh, nEmfSize);
 220             if (!emh) return FALSE;
 221             physDev->emh = emh;
 222         }
 223         memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
 224                emr->nSize);
 225     }
 226     return TRUE;
 227 }
 228
 229
 230 /******************************************************************
 231  *         EMFDRV_UpdateBBox
 232  */
 233 void EMFDRV_UpdateBBox( PHYSDEV dev, RECTL *rect )
 234 {
 235     EMFDRV_PDEVICE *physDev = (EMFDRV_PDEVICE *)dev;
 236     RECTL *bounds = &physDev->emh->rclBounds;
 237     RECTL vportRect = *rect;
 238
 239     LPtoDP( dev->hdc, (LPPOINT)&vportRect, 2 );
 240
 241     /* The coordinate systems may be mirrored
 242        (LPtoDP handles points, not rectangles) */
 243     if (vportRect.left > vportRect.right)
 244     {
 245         LONG temp = vportRect.right;
 246         vportRect.right = vportRect.left;
 247         vportRect.left = temp;
 248     }
 249     if (vportRect.top > vportRect.bottom)
 250     {
 251         LONG temp = vportRect.bottom;
 252         vportRect.bottom = vportRect.top;
 253         vportRect.top = temp;
 254     }
 255
 256     if (bounds->left > bounds->right)
 257     {
 258         /* first bounding rectangle */
 259         *bounds = vportRect;
 260     }
 261     else
 262     {
 263         bounds->left   = min(bounds->left,   vportRect.left);
 264         bounds->top    = min(bounds->top,    vportRect.top);
 265         bounds->right  = max(bounds->right,  vportRect.right);
 266         bounds->bottom = max(bounds->bottom, vportRect.bottom);
 267     }
 268 }
 269
 270 /**********************************************************************
 271  *          CreateEnhMetaFileA   (GDI32.@)
 272  */
 273 HDC WINAPI CreateEnhMetaFileA(
 274     HDC hdc,           /* [in] optional reference DC */
 275     LPCSTR filename,   /* [in] optional filename for disk metafiles */
 276     const RECT *rect,  /* [in] optional bounding rectangle */
 277     LPCSTR description /* [in] optional description */
 278     )
 279 {
 280     LPWSTR filenameW = NULL;
 281     LPWSTR descriptionW = NULL;
 282     HDC hReturnDC;
 283     DWORD len1, len2, total;
 284
 285     if(filename)
 286     {
 287         total = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
 288         filenameW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 289         MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, total );
 290     }
 291     if(description) {
 292         len1 = strlen(description);
 293         len2 = strlen(description + len1 + 1);
 294         total = MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, NULL, 0 );
 295         descriptionW = HeapAlloc( GetProcessHeap(), 0, total * sizeof(WCHAR) );
 296         MultiByteToWideChar( CP_ACP, 0, description, len1 + len2 + 3, descriptionW, total );
 297     }
 298
 299     hReturnDC = CreateEnhMetaFileW(hdc, filenameW, rect, descriptionW);
 300
 301     HeapFree( GetProcessHeap(), 0, filenameW );
 302     HeapFree( GetProcessHeap(), 0, descriptionW );
 303
 304     return hReturnDC;
 305 }
 306
 307 /**********************************************************************
 308  *          CreateEnhMetaFileW   (GDI32.@)
 309  */
 310 HDC WINAPI CreateEnhMetaFileW(
 311     HDC           hdc,        /* [in] optional reference DC */
 312     LPCWSTR       filename,   /* [in] optional filename for disk metafiles */
 313     const RECT*   rect,       /* [in] optional bounding rectangle */
 314     LPCWSTR       description /* [in] optional description */
 315     )
 316 {
 317     static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
 318     HDC ret;
 319     DC *dc;
 320     HDC hRefDC = hdc ? hdc : CreateDCW(displayW,NULL,NULL,NULL);
 321         /* If no ref, use current display */
 322     EMFDRV_PDEVICE *physDev;
 323     HANDLE hFile;
 324     DWORD size = 0, length = 0;
 325
 326     TRACE("%s\n", debugstr_w(filename) );
 327
 328     if (!(dc = alloc_dc_ptr( OBJ_ENHMETADC ))) return 0;
 329
 330     physDev = HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
 331     if (!physDev) {
 332         free_dc_ptr( dc );
 333         return 0;
 334     }
 335     if(description) { /* App name\0Title\0\0 */
 336         length = lstrlenW(description);
 337         length += lstrlenW(description + length + 1);
 338         length += 3;
 339         length *= 2;
 340     }
 341     size = sizeof(ENHMETAHEADER) + (length + 3) / 4 * 4;
 342
 343     if (!(physDev->emh = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size))) {
 344         HeapFree( GetProcessHeap(), 0, physDev );
 345         free_dc_ptr( dc );
 346         return 0;
 347     }
 348
 349     push_dc_driver( &dc->physDev, &physDev->dev, &EMFDRV_Funcs );
 350
 351     physDev->handles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, HANDLE_LIST_INC * sizeof(physDev->handles[0]));
 352     physDev->handles_size = HANDLE_LIST_INC;
 353     physDev->cur_handles = 1;
 354     physDev->hFile = 0;
 355     physDev->dc_brush = 0;
 356     physDev->dc_pen = 0;
 357     physDev->horzres = GetDeviceCaps(hRefDC, HORZRES);
 358     physDev->vertres = GetDeviceCaps(hRefDC, VERTRES);
 359     physDev->logpixelsx = GetDeviceCaps(hRefDC, LOGPIXELSX);
 360     physDev->logpixelsy = GetDeviceCaps(hRefDC, LOGPIXELSY);
 361     physDev->horzsize = GetDeviceCaps(hRefDC, HORZSIZE);
 362     physDev->vertsize = GetDeviceCaps(hRefDC, VERTSIZE);
 363     physDev->bitspixel = GetDeviceCaps(hRefDC, BITSPIXEL);
 364     physDev->textcaps = GetDeviceCaps(hRefDC, TEXTCAPS);
 365     physDev->rastercaps = GetDeviceCaps(hRefDC, RASTERCAPS);
 366     physDev->technology = GetDeviceCaps(hRefDC, TECHNOLOGY);
 367     physDev->planes = GetDeviceCaps(hRefDC, PLANES);
 368     physDev->numcolors = GetDeviceCaps(hRefDC, NUMCOLORS);
 369     physDev->restoring = 0;
 370
 371     SetVirtualResolution(physDev->dev.hdc, 0, 0, 0, 0);
 372
 373     physDev->emh->iType = EMR_HEADER;
 374     physDev->emh->nSize = size;
 375
 376     physDev->emh->rclBounds.left = physDev->emh->rclBounds.top = 0;
 377     physDev->emh->rclBounds.right = physDev->emh->rclBounds.bottom = -1;
 378
 379     if(rect) {
 380         physDev->emh->rclFrame.left   = rect->left;
 381         physDev->emh->rclFrame.top    = rect->top;
 382         physDev->emh->rclFrame.right  = rect->right;
 383         physDev->emh->rclFrame.bottom = rect->bottom;
 384     } else {  /* Set this to {0,0 - -1,-1} and update it at the end */
 385         physDev->emh->rclFrame.left = physDev->emh->rclFrame.top = 0;
 386         physDev->emh->rclFrame.right = physDev->emh->rclFrame.bottom = -1;
 387     }
 388
 389     physDev->emh->dSignature = ENHMETA_SIGNATURE;
 390     physDev->emh->nVersion = 0x10000;
 391     physDev->emh->nBytes = physDev->emh->nSize;
 392     physDev->emh->nRecords = 1;
 393     physDev->emh->nHandles = 1;
 394
 395     physDev->emh->sReserved = 0; /* According to docs, this is reserved and must be 0 */
 396     physDev->emh->nDescription = length / 2;
 397
 398     physDev->emh->offDescription = length ? sizeof(ENHMETAHEADER) : 0;
 399
 400     physDev->emh->nPalEntries = 0; /* I guess this should start at 0 */
 401
 402     /* Size in pixels */
 403     physDev->emh->szlDevice.cx = physDev->horzres;
 404     physDev->emh->szlDevice.cy = physDev->vertres;
 405
 406     /* Size in millimeters */
 407     physDev->emh->szlMillimeters.cx = physDev->horzsize;
 408     physDev->emh->szlMillimeters.cy = physDev->vertsize;
 409
 410     /* Size in micrometers */
 411     physDev->emh->szlMicrometers.cx = physDev->horzsize * 1000;
 412     physDev->emh->szlMicrometers.cy = physDev->vertsize * 1000;
 413
 414     memcpy((char *)physDev->emh + sizeof(ENHMETAHEADER), description, length);
 415
 416     if (filename)  /* disk based metafile */
 417     {
 418         if ((hFile = CreateFileW(filename, GENERIC_WRITE | GENERIC_READ, 0,
 419                                  NULL, CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
 420             free_dc_ptr( dc );
 421             return 0;
 422         }
 423         if (!WriteFile( hFile, physDev->emh, size, NULL, NULL )) {
 424             free_dc_ptr( dc );
 425             return 0;
 426         }
 427         physDev->hFile = hFile;
 428     }
 429
 430     TRACE("returning %p\n", physDev->dev.hdc);
 431     ret = physDev->dev.hdc;
 432     release_dc_ptr( dc );
 433
 434     if( !hdc )
 435       DeleteDC( hRefDC );
 436
 437     return ret;
 438 }
 439
 440 /******************************************************************
 441  *             CloseEnhMetaFile (GDI32.@)
 442  */
 443 HENHMETAFILE WINAPI CloseEnhMetaFile(HDC hdc) /* [in] metafile DC */
 444 {
 445     HENHMETAFILE hmf;
 446     EMFDRV_PDEVICE *physDev;
 447     DC *dc;
 448     EMREOF emr;
 449     HANDLE hMapping = 0;
 450
 451     TRACE("(%p)\n", hdc );
 452
 453     if (!(dc = get_dc_ptr( hdc ))) return NULL;
 454     if (dc->header.type != OBJ_ENHMETADC)
 455     {
 456         release_dc_ptr( dc );
 457         return NULL;
 458     }
 459     if (dc->refcount != 1)
 460     {
 461         FIXME( "not deleting busy DC %p refcount %u\n", hdc, dc->refcount );
 462         release_dc_ptr( dc );
 463         return NULL;
 464     }
 465     physDev = (EMFDRV_PDEVICE *)dc->physDev;
 466
 467     if(dc->saveLevel)
 468         RestoreDC(hdc, 1);
 469
 470     if (physDev->dc_brush) DeleteObject( physDev->dc_brush );
 471     if (physDev->dc_pen) DeleteObject( physDev->dc_pen );
 472
 473     emr.emr.iType = EMR_EOF;
 474     emr.emr.nSize = sizeof(emr);
 475     emr.nPalEntries = 0;
 476     emr.offPalEntries = FIELD_OFFSET(EMREOF, nSizeLast);
 477     emr.nSizeLast = emr.emr.nSize;
 478     EMFDRV_WriteRecord( dc->physDev, &emr.emr );
 479
 480     /* Update rclFrame if not initialized in CreateEnhMetaFile */
 481     if(physDev->emh->rclFrame.left > physDev->emh->rclFrame.right) {
 482         physDev->emh->rclFrame.left = physDev->emh->rclBounds.left *
 483           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 484         physDev->emh->rclFrame.top = physDev->emh->rclBounds.top *
 485           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 486         physDev->emh->rclFrame.right = physDev->emh->rclBounds.right *
 487           physDev->emh->szlMillimeters.cx * 100 / physDev->emh->szlDevice.cx;
 488         physDev->emh->rclFrame.bottom = physDev->emh->rclBounds.bottom *
 489           physDev->emh->szlMillimeters.cy * 100 / physDev->emh->szlDevice.cy;
 490     }
 491
 492     if (physDev->hFile)  /* disk based metafile */
 493     {
 494         if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0)
 495         {
 496             CloseHandle( physDev->hFile );
 497             free_dc_ptr( dc );
 498             return 0;
 499         }
 500
 501         if (!WriteFile(physDev->hFile, physDev->emh, sizeof(*physDev->emh),
 502                        NULL, NULL))
 503         {
 504             CloseHandle( physDev->hFile );
 505             free_dc_ptr( dc );
 506             return 0;
 507         }
 508         HeapFree( GetProcessHeap(), 0, physDev->emh );
 509         hMapping = CreateFileMappingA(physDev->hFile, NULL, PAGE_READONLY, 0,
 510                                       0, NULL);
 511         TRACE("hMapping = %p\n", hMapping );
 512         physDev->emh = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
 513         TRACE("view = %p\n", physDev->emh );
 514         CloseHandle( hMapping );
 515         CloseHandle( physDev->hFile );
 516     }
 517
 518     hmf = EMF_Create_HENHMETAFILE( physDev->emh, (physDev->hFile != 0) );
 519     physDev->emh = NULL;  /* So it won't be deleted */
 520     free_dc_ptr( dc );
 521     return hmf;
 522 }